Process of treating wood



Dec. 7 22 1925- J. SHULER PROCESS OF TREATING WOOD Filed July 23, 1925 UNITED STA Patented Dec. 22, 1925.

TES

1,566,985 PATENT OFFICE.

JOHN SHULER, OF COLUMBUS, OHIO.

rnocnss or TREATING WOOD.

Application filed Ju1y 23, 1925. Serial No. 45,698.

To itemag concern:

, Wood, of which the following is a specification.

' The present invention relates to a process of treating wood to enhance the appearance thereof.

The'primary object of the invention is to provide a process wherein the natural grain of the wood will be prominently brought out in order that the surface of the wood will be beautified 'in' order that such wood can be used in places or on articles wherein pronounced decorative. effects are desired.

A further object of the invention is to provide a recess wherein wood which here tofore cou d not be used satisfactorily for decorative purposes can be utilized. The accompanying drawing illustrates one of the numerous effects. I am aware that wood has been subjects to heat and then rubbed, but this process 'has been used successfully, as far as I am of such wood aidin aware on cypress, the natural characteristics the process. My process ls'suc that woods. of various kinds can be used, such for instance as pine,

tion of-fifty parts water, forty-five gum, fir and oak, as well as .cypressl I In carrying out my process I use a soluarts muriatic acid and five parts saltpeter w ich is applied to the surface tobe'treated. However, I wish'it to bennderstood that the proportions of ingredients of the solution can be varied iirsome'qinstances,-but I have found from actual practic that the'proportions as above givejperfec 'jresults} are fattained.

In practismgi af y process- I take a piece of wood -off th'e@dsirdkihd and coat the same Withthe solution, then apply the flame "of a blow .torch to the coated surface a sufficienttiinetochar the grain or highlight as it is sometimes termed in the wood finishing trade. The heat can be applied immediately after coating or some little time there after, as desired. After the burning or charring operation steel wool is preferably used to remove the charred surface of the soft portions of the wood and some of the charred surface of the grain or highlights. The softer portions of the wood will naturally absorb more of the solution than the grain softer portions retaining their natural color.

In this manner the grain or highlights are left in relief and consequently producing an extremely decorative effect. Since the softer portions of the wood are more porous than the harder grain it will be obvious that such portions will absorb more of the solution than the remaining portions of the wood, thereby preventing charring of the softer portions to as great an extent as the harder grain or highlights. Therefore the rubbing operation will remove all of the charred surfaces of the softer portions leaving them in their natural color.

' After the rubbing operation the surface can be waxed, tinted or treated in any suitable manner to obtain the desired result or finish, the wood so treated being admirably adapted, whether solid or veneer for mak-,

ing cabinets, wall panels, furniture or in fact for any purpose wherein itis desired to beautify the wood by distinctly displaying the natural rain or pattern thereof.

What is c aimed is v 1. A process of treating wood which consists in coating the surface thereof with a solution which protects the softer portions thereof against charring to a greater degree than the harder portions, then applying heat to the coated surface which chars the harder portions to a greater extent than the softer portions, then rubbing the surface to remove the charred surface of the softer portions and leaving the harder portions charred.

2. A process of treating wood which consists in coating the surface thereof with a solution of water, muriatic acid and saltpeter, which solution is absorbed to a greater degree by the softer portions of the wood than by the harder portions thereof to resurface to char the same, then rubbing the surface to remove the charred surface of grain, then apply heat to the surface to char the softer portions and a portion of the both grains,.then rubbing the s'urfaceto re- 10 'charred Surface of the harder portions. move the charred surface of the soft grain 3. The herein described process of treatto expose the natural color of the Wood and 5 ing wood which consists'in coating the surleaving the hard grain charred.

face thereof with a solution-of Wat-er, muri- In testimony whereof I affix my signature. atic acid and saltpeter to fire proof the soft 7 grain to a greater degree than the hard JOHN SHULER. 

